The pH is essentially a voltmeter and the electrical potential across the glass membrane varies with [H+] of the test solution. Thus the Nernst equation, Eglass = Eoglass + 0.0591 log[H+], is applicable to the pH meter. What does Eoglass represent?
The pH is essentially a voltmeter and the electrical potential across the glass membrane
varies with [H+] of the test solution. Thus the Nernst equation, Eglass = Eoglass + 0.0591 log[H+], is
applicable to the pH meter. What does Eoglass represent?
The pH meter is an important tool for measuring the acidity or alkalinity of a solution. It is based on the principle that the electrical potential across the glass membrane of a pH-sensitive electrode varies with the concentration of hydrogen ions in the solution being measured.
This variation in potential is used to calculate the pH of the solution using the Nernst equation, which relates the potential difference to the concentration of hydrogen ions in the solution.
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